TY  - RPRT
TI  - Potentiometric surface map of the Floridan Aquifer in the St. Johns River water management district and vicinity, Florida, May 1978
AU  - F.A. Watkins
AU  - C. P. Laughlin
AU  - E. C. Hayes
PY  - 1979
DO  - 10.3133/ofr79257
UR  - https://pubs.usgs.gov/publication/ofr79257
ID  - ofr79257
ER  -